Purdue University’s Diversity Spend Reporting

Purdue University is dedicated to building and maintaining a strong, diverse supply chain network. Part of this effort includes tracking and reporting spend the University has with diverse businesses. University tracking and reporting is based on the following categories:

  • Tier 1 or Prime – Companies who contract directly with the University to provide goods and services.
  • Tier 2 or Subcontractor – Companies who provide goods or services to the University’s prime contractors in support of a specific University contract.

The ability to capture diverse subcontractor spend on its contracts allows Purdue to expand diverse business, economic development and job creation in the Greater Lafayette community.


Tier 1 or prime suppliers are asked to complete the following requirements:

  • Utilize diverse suppliers in their supply chains on services directly related to a University contract.
  • Attend training (information included below) on the University’s Tier 2 reporting system, UniTier, provided by supplier.io.
  • Report monthly diverse subcontractor spend in the UniTier system.
  • Construction contractors will report in UniTier and must continue to submit the monthly Minority- and Women-Owned Business Enterprise (MBE/WBE) Utilization form with their pay application per its instructions and the provisions of § 13.8 of the General Conditions of the Contract.


To access the UniTier login, click here.

Reporting Schedule

 Reporting Period





 Oct. 1

 Oct. 10



 Jan. 1

 Jan. 10



 April 1

 April 10



 July 1

 July 10

Automated reporting reminders are provided by UniTier from the email address support@supplier.io.


Multiple training sessions are available for the Tier 2 reporting system, UniTier. Registration for these training sessions is available here. Training session times are listed in CST.

A user guide is also available here.

A previously recorded training video is available here.


What is UniTier?

UniTier is a comprehensive subcontracting database, which captures payments made by prime contractors to subcontractors.

The system provides transparency for Purdue, the ability to monitor contract activity, the ability to detect problems with timeliness of payments from contractors to subcontractors and a standard process for the University to track the utilization of subcontracted diverse suppliers on Purdue projects.

What to expect?

Over the next few weeks, we request suppliers participate in the following activities:

Register For and Attend Training: The system is new and different from several others. Purdue highly recommends that a company representative attends training before attempting to report. Registration for these training sessions is available here.

Participants may attend more than one session.

Get System Credentials: Suppliers will receive an email with information on setting up access to the system. Follow the instructions in the email to set up system credentials. Credentials will need to be submitted before reporting. If a supplier already uses UniTier to report for other customers, another set of credentials is not needed. 

Please email unitier@supplier.io for assistance in getting set up appropriately.

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